You can compare the Treo 700w against its predecessor, the 650, or against other Windows Mobile handhelds. The Palm OS used in the Treo 650 still requires fewer taps and clicks than Windows Mobile, uses less battery power in PDA mode, and feels zippier with the 312-MHz processor.

Windows Mobile's strengths are in the integration with Microsoft workplaces and in high-end features like video playback, Wi-Fi/cellular convergence, high-res screens, powerful processors, and glamorous games. But the Treo 700w's 240-by-240 screen consigns videos to a cramped window (or to having their sides clipped off); there's no Wi-Fi (though EV-DO is nice); and the processor isn't all that fast.

No perfect smartphone solution is available right now, in our eyes. For power, we'd recommend the Sprint PPC-6700 or its Verizon cousin. Both are smaller and lighter than the Treo and have Wi-Fi, a faster processor, and a bigger display than the Treo's, but they aren't quite as usable one-handed. For e-mail and phone use, we like the BlackBerry 7130e, which has a slim form, light weight, and excellent sound quality (though you'll have to be comfortable with its unusual keyboard). And if high-speed networking isn't important to you, well, the Treo 650 is still out there on store shelves.

PCMag.com's lead mobile analyst, Sascha Segan, has reviewed hundreds of smartphones, tablets and other gadgets in more than 9 years with PCMag. He's the head of our Fastest Mobile Networks project, one of the hosts...

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